十六個訊號點之非同調區塊編碼調變; Noncoherent Block-Coded Modulation with Sixteen Signal Points

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Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/8261

Title:	十六個訊號點之非同調區塊編碼調變;Noncoherent Block-Coded Modulation with Sixteen Signal Points
Authors:	古士軒;Shi-Shan Gu
Contributors:	通訊工程研究所
Keywords:	非同調檢測器;區塊編碼調變;正交振幅調變;noncoherent detection;quadrature amplitude modulation(QAM);block-coded modulation
Date:	2008-07-04
Issue Date:	2009-09-22 11:22:06 (UTC+8)
Publisher:	國立中央大學圖書館
Abstract:	兩種非同調區塊編碼架構，使用八點相位鍵移(8PSK)的非同調區塊編碼及八點扭轉振幅相位鍵移(8TAPSK)的非同調區塊編碼已經被提出了。然而，上述只用八個訊號點的這兩種架構，其資料傳輸率不夠高。在此篇論文中，我們探討使用十六個訊號點的非同調區塊編碼架構，包含了十六點的TAPSK及十六點的正交振福調變(QAM)。十六點的QAM被廣泛的使用於同調通訊系統上，我們推導出使用十六點QAM的區塊編碼之最小非同調距離，並且根據它來提出一個新的非同調區塊編碼架構。對於不同區塊長度以及不同的構成碼，我們比較使用十六點QAM之非同調區塊編碼及使用十六點TAPSK之非同調區塊編碼的非同調距離分析和錯誤效能。 Two noncoherent block coding schemes, noncoherent block-coded 8PSK (NBC-8PSK) and noncoherent block-coded Twisted amplitude and phase shift keying using eight signal points(NBC-8TAPSK) were proposed, respectively. However, the data rate is not high since only eight signal points are used in both schemes. In this thesis, we discuss noncoherent block coding scheme with sixteen signal points, including 16TAPSK and quadrature amplitude modulation (16QAM). 16QAM is widely used for coherent communication. We derived the minimum noncoherent distance for block-coded 16QAM. Accordingly, we propose a new noncoherent block coding scheme. For different block length and code rate, NBC-16TAPSK and NBC-16QAM are compared by distance analysis and computer simulations.
Appears in Collections:	[Graduate Institute of Communication Engineering] Electronic Thesis & Dissertation

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